A slightly updated version of the same patch against 2.6.0-test3-mm3 isbelow. Avoid clearing the i_uid and i_gid in revalidate unless thoseare truly the right values, and don't bother testing for PROC_PID_INO inpid_fd_revalidate. Of course, these changes only ensure proper updatingwhen revalidate is called, so already opened files can still be readunder the old attributes until the file is looked up again...